JobsCyber SecurityUnited StatesCybersecurity Engineer III

Sierra Space

Posted 4 days ago

Cybersecurity Engineer III

Sierra Space · Centennial, Colorado, United States · also Louisville, Colorado, United States

Full-timeOn site5-10 yrs$122k–$168kListed as no visa sponsorshipAviation and Aerospace Component Manufacturing
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In short

The Cybersecurity Engineer III is responsible for designing, implementing, and maintaining advanced security measures, including identity management and phishing protection. They will also monitor security incidents, develop security policies, and collaborate with cross-functional teams to ensure system integrity.

What they're looking for

MUST-HAVE SKILLS

Identity and access management administrationMulti-factor authentication administrationData loss prevention policiesPhishing email security administrationSecurity incident responseSecurity policy and procedure documentationBachelor's degree in related field

ALSO MENTIONED

CyberArk, BeyondTrust, or Okta privileged access experiencePhishing simulation and security awareness trainingScripting for security automation

Candidates must have a bachelor's degree or equivalent experience and typically 5+ years of related experience. Required certifications include GIAC, CCNP, or SANS level 300 courses.

About the employer

Sierra Space

Defending Today. Defining Tomorrow.™

Headquartered in Colorado, Sierra Space is a mission-proven Defense Tech company delivering satellite platforms, critical subsystems, reusable spaceplanes, hypersonic technologies, propulsion systems, and infrastructure for the nation’s most critical missions.

Read more

With more than three decades of heritage and a record of flight-proven success in space, Sierra Space is trusted by U.S. National Security, Civil customers, and global allies. Our technologies safeguard our nation, sustain human exploration in space, and ensure the freedom of operations beyond Earth. Sierra Space is defining the new era of Space Defense, strengthening deterrence today and preserving freedom of action for generations to come.

INDUSTRY
Aviation and Aerospace Component Manufacturing
COMPANY
Privately Held
FOUNDED
2021
HEADQUARTERS
Louisville, Colorado (CO)
SIZE
1,001-5,000on LinkedIn
OFFICES
1 on LinkedIn

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Questions about this role

Is this Sierra Space role remote?
Tagged on site.
What does it pay?
The posting lists $122,109–$167,899 a year.
Does it sponsor visas?
Listed as no visa sponsorship.
What experience does it ask for?
Listed as 5-10 years.

The posting, in full

At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth. Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond.

▶ READ THE FULL POSTING

Sierra Space Careers

At Sierra Space, we build the missions and systems that keep our world secure in the domain above Earth.

Sierra Space team members share a spirit of innovation and collaboration and a belief that we can deliver on the boldest missions in space today. Together with our customers, we aim to safeguard our nation, sustain human presence in space, and secure the freedom of operations in low Earth orbit and beyond.

Our success is measured by the trust of those who rely on what we build and deliver, and our technologies keep the United States and its allies mission-ready throughout space.

We are mission-driven, and together, we are an extraordinary team.

About the Role

The Cybersecurity Engineer III is responsible for designing, implementing, and maintaining advanced security measures to protect the organization's information systems. This role involves working with various security technologies, including encryption, intrusion detection/prevention systems (IDS/IPS), and multi-factor authentication (MFA).

The successful candidate will have extensive knowledge of secure systems architecture, emerging technologies, threats, and regulatory requirements. The Cybersecurity Engineer III will work closely with senior engineers and cross-functional teams to ensure the security and integrity of the organization's information systems. This position offers the opportunity to work on complex security projects, stay updated with the latest industry trends, and contribute to the continuous improvement of the organization's security posture.

Key Responsibilities:

  • Administer Identity and Access Management platform including managing user access and maintaining the platform.
  • Maintain on-prem hardware that hosts IAM platforms, and plan and execute migration off end-of-life hardware and software.
  • Administer on-prem MFA implementations, including renewal of token license keys.
  • Own the MFA configuration and deployment across the enterprise, including the Duo admin portal, policies, and enrollment.
  • Administer phishing email security platform, including tuning, maintenance, and updates for phishing analysis and reporting.
  • Maintain the enterprise phishing reporting functionality and deploy updates as needed.
  • Lead the phishing simulation and security awareness training program, including campaign design, scheduling, and reporting.
  • Build, tune, and administer data loss prevention (DLP) policies.
  • Develop and maintain security policies, procedures, and documentation.
  • Monitor and respond to security incidents and alerts, providing technical support and troubleshooting.
  • Collaborate with cross-functional teams to integrate security best practices into system designs and deployments.
  • Document operational procedures and institutional knowledge in writing to support continuity of the team.

About You

Our mission is driven by an unyielding commitment to advancing space-based technology in service of our customers and safeguarding national security. We seek individuals who are passionate about innovating beyond boundaries and relentlessly pursuing solutions that protect, preserve and empower – to join us in this critical mission.

We’re looking for team members who align with our values, mission and goals – while also meeting the minimum qualifications below. The preferred qualifications are a bonus, not a requirement.

Minimum Qualifications

  • Requires Bachelor's degree in a related field (or equivalent work experience in lieu of degree or Masters +3 years experience).
  • Typically 5+ years of related experience.
  • Certifications: (1 or more required) GIAC (Global Information Assurance Certification), network technology certifications such as a CCNP (Cisco Certified Network Professional), or SANS level 300 courses.

Preferred Qualifications

  • Hands-on experience administering IAM platforms like CyberArk, BeyondTrust, Okta, or comparable privileged access management tools.
  • Experience administering Multi-Factor Authentication platforms like RSA SecurID, Cisco Duo, Okta MFA or comparable MFA systems.
  • Experience with multi-factor authentication deployment at enterprise scale.
  • Experience with platforms like Cofense, KnowBe4, Proofpoint or comparable phishing analysis and simulation platforms.
  • Experience designing and running security awareness training and phishing simulation programs.
  • Experience with Microsoft Purview, Microsoft Azure, or Microsoft 365 data loss prevention and security administration.
  • Certifications: CCSP, CISA, CISM, CISSP, or equivalent.
  • Proficiency in scripting languages such as Python, PowerShell, or Bash for automation of security tasks.
  • Strong problem-solving skills, attention to detail, and excellent communication and teamwork skills.

Compensation

Pay Range:

$122,109.00 - $167,898.75

Your actual base compensation will be determined on a case-by-case basis and may vary based on job-related knowledge and skills, education, experience, internal equity and market competitiveness.

Elevate Your Career

At Sierra Space, we are committed to your personal and professional development. We empower you to make profound and meaningful contributions and foster a vibrant culture of collaboration, where teamwork ignites breakthrough innovations.

We also offer a generous benefit package, including medical, dental, and vision plans, 401(k) with 150% match up to 6%, life insurance, 3 weeks paid time off, and more.

Sierra Space is an industry-leading space and defense technology company providing satellites, spacecraft, and enabling mission systems and components. We deliver mission-proven technologies to our customers that safeguard our nation, protect space-based assets and enable space exploration.

Application Deadline: This role will remain posted until a qualified pool of candidates is identified.

Please note: Sierra Space does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to Sierra Space team members not through our approved vendor list or Talent Acquisition will be considered property of Sierra Space, and we will not be obligated to pay any referral fees.

Sierra Space Corporation is an equal opportunity employer and is committed to working with and providing reasonable accommodations to applicants with disabilities. If you need special assistance or a reasonable accommodation related to applying for employment with Sierra Space or at any stage of the recruitment process, please contact us.

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This listing comes from Sierra Space's own careers site. Apply links go to the employer. Company facts are from Sierra Space's public profile. Last checked 14 Nov 2026.